And, strangely, peacetime ex-military officers are some of the most change resistant of all.
And in wartime, both WWI and WWII, many of our most brilliant commanders were "weekend warriors", John Monash being one outstanding example. This was also true for other Commonwealth countries, like Canada, NZ and SA.
Tootle pip!!
PS: Does anybody have the full details of, during the Malaysian Emergency, the "Academy Ace" doing a bit of "hand on" in an RAAF Lincoln dropping his bombs with the bomb bay doors closed.